3Com 3CRWDR300A-73 User manual
http://www.3Com.com/
Part No. 10015880 Rev. AA
Published June 2008
Wireless 11n ADSL Firewall Router
User Guide
WL-603
3CRWDR300A-73
3CRWDR300B-73
3Com Corporation
350 Campus Drive,
Marlborough, MA
USA 01752-3064
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Conserving energy, materials and natural resources in all operations.
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CONTENTS
ABOUT THIS GUIDE
Naming Convention 7
Conventions 8
Feedback About This User Guide 9
Related Documentation 9
INTRODUCING THE ROUTER
Wireless 11n Cable/DSL Firewall Router 11
Router Advantages 13
Package Contents 13
Minimum System and Component Requirements 14
Physical Features 14
INSTALLING THE ROUTER
Introduction 19
Safety Information 19
Positioning the Router 19
Using the Rubber Feet 20
Wall Mounting 20
Powering Up the Router 21
Connecting the Router 21
SETTING UPYOUR COMPUTERS
Obtaining an IP Address Automatically 25
Windows 2000 25
Windows Vista 27
Windows XP 28
Macintosh 28
Disabling PPPoE and PPTP Client Software 29
Disabling Web Proxy 29
RUNNING THE SETUP WIZARD
Accessing the Setup Wizard 31
Wizard -
Change Password 34
Wizard -
Time and Time Zone 34
Wizard -
Connection Type 35
Setup Wizard - LAN Settings 42
Wizard - Wireless Setting 43
Wizard - Configuration Summary 44
CONFIGURING THE ROUTER
Navigating Through the Router Configuration screens 45
Main Menu 45
Welcome Screen 45
Status 45
LAN Settings 46
LAN Settings 46
DHCP Clients List 47
Wireless Settings 49
Configuration 50
Encryption 51
WPS 56
Connection Control 57
Client List 58
WMM 59
WDS 60
Advanced 61
Internet Settings 62
WAN 62
DNS 69
Clone MAC address 70
Firewall 71
SPI 71
Special Applications 75
Virtual Servers 76
DMZ 77
PC Privileges 78
Schedule Rule 80
URL Filter 81
Advanced 82
Security 82
VLAN 85
Static Routes 85
RIP 87
DDNS 89
SNMP 90
Syslog 91
Proxy ARP 92
QoS Settings 93
VPN 94
System Tools 98
Restart Router 98
Configuration 98
Upgrade 99
Time Zone 100
Ping 101
Traceroute 102
DNS Lookup 103
Status and Logs 104
Status 104
Routing Table 104
Logs 105
Traffic Statistics 105
Support/Feedback 106
Support 106
Feedback 106
TROUBLESHOOTING
Basic Connection Checks 107
Browsing to the Router Configuration Screens 107
Connecting to the Internet 108
Forgotten Password and Reset to Factory Defaults 108
Wireless Networking 109
Recovering from Corrupted Software 111
Frequently Asked Questions 112
IP ADDRESSING
The Internet Protocol Suite 113
Managing the Router over the Network 113
IP Addresses and Subnet Masks 113
How does a Device Obtain an IP Address and Subnet Mask? 115
DHCP Addressing 115
Static Addressing 115
Auto-IP Addressing 115
TECHNICAL SPECIFICATIONS
3Com Wireless 11n Cable/DSL Firewall Router 117
Standards 118
SAFETY INFORMATION
END USER SOFTWARE LICENSE AGREEMENT
OBTAINING SUPPORT FOR YOUR PRODUCT
ABOUT THIS GUIDE
This guide describes how to install and configure the 3Com Wireless 11n
ADSL Firewall Router (3CRWDR300A-73, 3CRWDR300B-73).
This guide is intended for use by those responsible for installing and
setting up network equipment; consequently, it assumes a basic working
knowledge of LANs (Local Area Networks) and Internet Routers.
If a release note is shipped with the 3Com Wireless 11n ADSL Firewall
Router and contains information that differs from the information in this
guide, follow the information in the release note.
Most user guides and release notes are available in Adobe Acrobat
Reader Portable Document Format (PDF) on the 3Com World Wide Web
site:
http://www.3Com.com
Naming Convention Throughout this guide, the 3Com Wireless 11n ADSL Firewall Router is
referred to as the “Router”.
Category 3 and Category 5 Twisted Pair Cables are referred to as Twisted
Pair Cables throughout this guide.
8ABOUT THIS GUIDE
Conventions Table 1 and Ta b le 2 list conventions that are used throughout this guide.
Table 1 Notice Icons
Icon Notice Type Description
Information note Information that describes important features or
instructions.
Caution Information that alerts you to potential loss of data or
potential damage to an application, system, or device.
Warning Information that alerts you to potential personal
injury.
Table 2 Text Conventions
Convention Description
The words “enter”
and “type”
When you see the word “enter” in this guide, you must type
something, and then press Return or Enter. Do not press
Return or Enter when an instruction simply says “type.”
Keyboard key names If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+). Example:
Press Ctrl+Alt+Del
Words in italics Italics are used to:
■Emphasize a point.
■Denote a new term at the place where it is defined in the
text.
■Identify menu names, menu commands, and software
button names. Examples:
From the Help menu, select Contents.
Click OK.
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